Freeze of whole IE-window when clicking radiobutton

[John van der Elburg]

The code in the attached file produces a page with an fckeditor that freezes the whole IE window when you click on the radio button inside it. This occurs when you click the radio button while the focus is NOT in the fckeditor window. It also happens with checkboxes.

You can test it on ​http://faramir.proteon.nl/fcktest.html

This didn't happen in fckeditor 2.4.3, but happens in both fckeditor 2.5 and 2.5.1.

Browser: IE7 on Windows XP.

[John van der Elburg]

Example file

[Martin Kou]

This bug is pretty severe so I'm targetting it to 2.6.

[Martin Kou]

The problem seems to come from IE instead of FCKeditor's code. What happened was when the radio button or checkbox in the editable area was clicked after the textbox was focused, IE somehow locked the mouse focus to the clicked button and couldn't release it unless you took the focus away from the IE window.

The solution in my patch was to make the radio button or checkbox temporarily disabled when it is being clicked. The trick seems to stop IE from locking the mouse focus on the said widgets.

[Frederico Caldeira Knabben]

Martin, you are really good for finding those hacks. I've just changed your original patch a bit:

• It does everything in fck_ie.js.

• It simplified the logic a bit, as there is no need to do anything if the <input> element is already disabled.

• I've reduced the timeout to re-enable the element to just 1ms. I noted a small flashing change with the original 50ms. 1ms seems to work, but if you have a precise motivation for 50ms, then feel free to revert it.

• The function names have been generalized (for possible reuse) according to the names already in use. I'm not saying that I like "Doc_OnMouseDown", but that's the way we have the code now. We'll have our chance to change it in the future (V3).

If you fell it is ok, go ahead committing it.

[Martin Kou]

Fixed with [1467].

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